<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <title>首页</title>
</head>
<body>
<h1>这是首页</h1>
<form action="http://127.0.0.1:5000">
        <input class="btn" type="submit" value="返回">
</form>
{#<div>{{ result }}</div>#}

</body>
</html>